Adding and recording machine.



J. RABER.

ADDING AND RECORDING APPLICATION FILED JULY INE.

Patented Nov. 2, 1915.

2 SHEETSSHEET l- J. RABER.

ADDING AND RECORDING MACHINE.

APPLICATION FILED JULY 26.1909.

1,158,717. I Patented Nov. 2, 1915.

2 SHEETSSHEET 2.

UNITED STATES PATENT OFFICE.

JOSEPH RABER, 0F POPLAR BLUFF, MISSOURI, ASSIGNOR, BY MESNE ASSIGNMENTS,

TO THE DALTON ADDING MACHINE COMPANY, OF CINCINNATI, OHIO, A CORPORA-TION OF OHIO.

ADDING AND RECORDING MACHINE.'

Specification of Letters Patent.

. Patented Nov. 2, 1915.

To all wkomc't may concern:

Be it known that I, JOSEPH RABER, a citizen of the United States,residing at Poplar Bluff, Missouri, have invented a new and usefulAdding and Recording Machine, of which the following is a specification.

This invention relates to adding and recording machines, and has for itsobject to provide an improved operating or driving mechanism foroperating the machine to perform its adding and recording functions.

Another object is to provide an adding machine in combination with anair or pneumatic driving mechanism under the control of the operatorwhereby the machine may be readily operated to perform its variousfunctions.

Another object is to provide an adding machine having mechanism forsetting, recording and adding numbers, in combination with an air-drivendevice for operating the mechanisms for adding and recording numbers,and means under the control of the operator for causing said air-drivendevice to operate whenever necessary.

Another object is to provide an adding machine having a main oroperating shaft in combination with a cylinder and piston mechanismentrained with said shaft whereby reciprocation of the piston willoperate the shaft, and devices under the control of the operator forregulating the operation of said piston.

There are other objects and advantages to be attained by this inventionwhich will appear from the following description, and reference to theaccompanying drawings, in which Figure 1 is a plan view illustrating theconnection of the present invention with the main or operating shaft ofa well known adding machine. Fig. 2 is a sectional view of an addingmachine containing the present invention.

For convenience of illustration I have embodied my invention in anaddingmachine of the cross carriage type of Well known construction.Manyof the more prominent features of said machine are illustrated inthe application filed by Hubert Hopkins on or about January 24, 1903,Serial No. 140,390, patented September 24, 1912, No. 1,039,130, and inBritish Patent No. 854, of 1904. These machines as at present on themarket and as described in the aforesaid application, comprise asuitable keyboard containing a set of keys 1, having levers 2 extendingrearwardly in the machine and being operative effectively to set upnumbers in a transversely movable car riage 3, through the operation insaid car riage of the movable pins 4. Said carriage operates in a wellknown manner upon transverse rails 5. The type-carriers 6 and theirracks 7 are suspended from the shaft 8 and after-the numbers have beenset up in the carriage said racks and type-carriers are operable inconnection with the parts 4 in the carriage to aline the necessary type9 on the type-carriers adjacent to the platen or paper carriage 10. Thenumbers thus presented at the recording line are printed on the papersupported by the platen or paper carriage by the operation of theprinting hammers 11, which are arranged in position to drive theinterposed type against the platen or paper with suflicient force tomake impressions thereon. The operation of the type-carriers and gearparts is controlled by the main or operating shaft 12,

having a lin 13 pivotally connected thereto at its front end and itsrear end connected to the return device 14. Said return device includestwo arms 15 swinging from the shaft 8, having a bar 16 at their lowerends extending in front of the vertical parts of the type-carriers andracks. Forward rotation of the shaft 12 will draw the link 13 forwardlywhich will carry the bar 16 away from the vertical portions of thetype-carriers and racks and permit said type-carriers and racks to beactuated by their springs 17 to recording position as above described.Springs 18 are connected to arms 19 rigid with the shaft 12 andto somestationary part of the machine, whereby said shaft and the link 13, aswell as the bar 16, will be returned to idle position after eachoperation. It is thus apparent that external or manual power is requiredonly to operate the shaft 12 in one direction, and that all the partsare returned toward their idle or rest position at each operation by thesprings 18.

Different devices for operating the adding and recording mechanisms ofadding machines have heretofore been utilized, including hand-levers andelectric motors, to both of which there are many objections h which Iseek to overcome by the present invention.

A cylinder 20 is composed of two parts telescoped one within the other,and an end part 21 hermetically closing one end of the cylinder. Apiston 22 is mounted within the cylinder thus constructed and isprovided with a rod or link 23 extending through the open front end ofthe cylinder and connected with a rack 24, said rack operating under agrooved roller 25 supported by the frame of the machine. The rack 24meshes with an eccentric or elliptical segment 26 rigid with the shaft12 whereby operation of the piston will rotate said shaft. The rearportion of the segment 26 is at a greater distance from the shaft 12than the front portion, whereby as the piston travels forwardly itslever connection with the shaft through the medium of the segment 26 isof increased length, thereby overcoming and compensating for theincreased resistance offered by the springs 18 to the continuedoperation of the shaft.

A valve chamber 27 is attached to one side of the cylinder 20 and theair or liquidv power for operating the piston is admitted into saidvalve chamber through pipe connection 28 leading from any usual sourceof supply. The valve mounted in said valve chamber includes the part 29and the part 30 between which the air or driving liquid is admitted.From the cylinder 20 a port 31 communicates with the valve chamber andan exhaust port 32 also opens into said valve chamber. A rod 33 isconnected to the valve parts 29 and 30 and has its front end mounted ina guide 34. A collar 35 is attached to said rod 33 and constitutes anabutment for a spring 36 which encircles said rod. An arm 37 connectedto the piston bar or rod 23 is provided with a hole through which therod 33 extends. A ring 38 mounted loosely on the rod 33 in front of thespring 36 in idle position of the parts rests against the arm 37 andconstitutes an abutment for the front end of said spring.

A collar 39 is attached near the front end of the rod 33 and constitutesan abutment for the front end of a spring 40 encircling said rod. A ring41 is loosely mounted on said rod at the rear end of the spring 40 andconstitutes a compression member by operation of which the spring may becompressed.

A latch pawl 42 pivoted to one of the frames of the machine is arrangedto engage with the projection 43 on the collar 39when the valve is inits advanced position, closing the inlet port 31. Said valve is movablefrom the position shown in Fig. 2 in which it closes the inlet port, toa position to close the exhaust port 32. In the latter position theinlet port is open and the operating medium enters the cylinder 20through the valve chamber and the port 31, thereby forcing the pistonforwardly and operating the shaft 12 in opposition to the springs 18. Alink 44 has its upper end pivoted to the pawl 42 and its lower end to alever 45. The

stem of the key 46 mounted conveniently in the keyboard has its lowerend pivoted to the lever 45 and constitutes means for manually releasingthe pawl 42 from engagement with the collar 39. When the key 46 isdepressed the pawl 42 being thereby disengaged from the collar 39, thespring 36 being under compression between the arm 37 and the collar 35,quickly moves the valve device to open the inlet port, thereby admittingthe driving air or fluid into the cylinder. The piston is thereupondriven forwardly until the arm 37 is brought into contact with the ring41. Continued movement of the piston compresses the spring 40. Duringthis operation forward movement of the valve is prevented by a latchpawl 47 pivoted to one of the frames of the machine and arranged toengage against the front side of the collar 39 when the valve rod is inits rearward position. A link 48 connects the pawl 47 with a lever 49pivoted near the base of the machine. An extension 50 on the segment 26engages with a lever 49, and at the time the operating mechanismcompletes its forward stroke, operates said lever effectively to releasethe pawl 47 from its engagement with the collar 39. Thereupon thecompressed spring 40 quickly moves the valve rod and valve to theiradvance positions, closing the inlet port 31 and opening the exhaustport 32. The springs 18 thereupon act to restore the entire mechanism toidle position without material resistance on the part of the drivingmechanism. A spring 51 connecting the pawls 42 and 47 operates to engagesaid pawls with the collar 39 at the required time.

In idle position as shown in Fig. 2, in which the springs 18 areretracted, the piston 22 is at the closed end of the cylinder. Should itbe necessary to operate the machine for adding or recording purposes,the key 46 will be depressed to release the pawl 42 from the valve rod.The compressed spring 36 thereupon moves said valve rod and the valveconnected thereto effectively to open the inlet port 31 and close theexhaust outlet. The air or operating medium then passes freely andquickly into the cylinder driving the piston forwardly, and the latterthrough its entrained connection with the shaft 12 operates the latterand all parts controlled thereby. This permits the typecarriers andracks to operate to perform their usual function. Forward operation ofthe piston continues below the arm 37, compresses the spring 40 untilthe pawl 47 is released from its engagement with the valve rod.Thereupon the valve rod is moved by said spring 40 and immediatelycloses the inlet opening 31 and opens the exhaust. This relieves thepressure from the rear side of the piston and permits the springs 18 toretract and return all parts to their idle positions. The forwardmovement of the valve rod moves the projection 43 again to its use inconnection with any distinct species of adding machine, and am awarethat there may be various changes in the construction and arrangement ofthe parts without departure from the spirit and scope of the invention.I do not restrict myself to specific features, but

What I claim and desire to secure by Letters Patent is 1. In an addingmachine, thecombination with a main shaft, and a yielding deviceconnected to said shaft and arranged to restore said shaft and the motorto their idle positions after operation of the motor, of a fluid motor,a valve for admitting and'exhausting fluid pressure to and from saidmotor, a device for opening said valve to admit fluid pressure to saidmotor, a connection for actuating said shaft in one direction' by saidmotor in opposition to said yielding device, and means controlled bysaid shaft for operating said valveto exhaust said fluid'pressure fromsaid motor and to enable said yielding device to restore said shaft andsaid motor to idle position.

2. In an adding machine, the combination with an operating shaft, and apower device for returning said shaft to idle position after operationof said shaft by the motor, of a fluid motor for driving said shaft inone direction effectively to store up power in said power device, avalve for admitting pressure to said motor at the'will of the operator,and a device controlled by said shaft for operating said valve toexhaust pressure from said motor and to enable said power device torestore said shaft to its starting point.

3. In an adding machine, a main or operating shaft, a piston,connections entraining said piston with said shaft, a passage foradmitting pressure to said piston, a valve in said passage, meansholding said valve in position to close said passage, means forreleasing said valve, and a device controlled by said connectionsbetween said piston and said shaft for moving said valve to open saidpassage to admit pressure to said piston.

a. In an adding machine, a main or opcrating shaft, a piston,connections from said piston to said shaft, 'apassage for admittingpressure to said piston, a valve controlling said passage, an elementholding said valve in position to close said passage,

- means for releasing said valve, and an actu ator for said valvecontrolled by said piston for moving said valve to open said passagewhen said valve is released.

5. In an adding machine, the combination of a main or operating shaft, aiston, connections from said piston to said shaft, an inlet passage foradmitting pressure to said piston, a valve in said passage,means forholding said valve in position to close said passage, an exhaust passagefrom said piston, manual meansfor releasing said valve, and meanscontrolled by saidconnections for moving said valve to position to opensaid inlet passage and to close said exhaust passage.

6. In an adding machine, a main or operating shaft, a piston,connections from said piston to said shaft, an inlet passage foradmitting pressure to said piston, an outlet passage from said piston, avalve, an element holding said valve in position to close said inletpassage and to leave said outlet passage open, a manual device forreleasing said element, and an actuator controlled by said connectionsfor moving said valve to open said inlet passage and to close saidoutlet passage when said element is released as aforesaid.

7. In an adding machine, a main or operating shaft, a piston,connections from said piston to said shaft, an inlet passage foradmitting pressure to said piston, an outlet passage from said piston, avalve arranged to move from one to the other of said passageseffectively to open and to close said passages alternately, aneiementholding said valve in position to close said inlet passage, means forreleasing said element, an actuator for moving said valve to open saidinlet passage and to close said outlet passage effectively to admitpressure to said piston to move said piston, means controlled by saidconnections for moving said valve to position to close said inletpassage and to open said outlet passage, and a power device energized bythe operation of said piston effectively to restore said shaft and saidpiston to their starting point.

8. In an adding machine, a main or operating shaft, a piston,connections from said piston to said shaft whereby movement of saidpiston in one direction will actuate said shaft and operation of saidshaft in the opposite direction will restore said piston to its startingpoint, an inlet passage for admitting pressure to said piston, an outletpassage for exhausting the pressure from said piston, a valve, meansoperated by said piston for moving said valve to position to close saidinlet passage and open said outlet passage, an element arranged toengage and-hold said valve in the position aforesaid, a power deviceenergized by the operation of said shaft by said piston, and means formoving said valve to position to open said outlet passage and close saidinlet passage and leave said power device free to return said shaft andsaid piston to their starting points.

9. In an adding machine, the combination with a rock shaft, a pistonconnected to said rock shaft, and a cylinder in which said piston isoperatively mounted, of means for admitting aeriform pressure into sa1dcylinder effectively to cause said piston to rock said shaft in onedirection, means under control of said rock shaft for releasing theaeriform pressure from the cylinder and leaving the shaft free to bereturned by the separate actuator, and a separateactuator energized bythe operation of said plston effectively to return said shaft and saidp1ston to their starting points.

10. The combination with a rock shaft, and an actuator for rocking saidshaft in one direction, of a piston connected to said shaft, a cylinderin which said piston 1s operatively mounted, means for admittingpressure into said cylinder to actuate sa d piston in one direction andto energlze sa1d actuator, and means under control of said rock shaftfor releasing said pressure from said cylinder and to permit saidactuator to actuate said shaft and said piston to idle position.

11. The combination with a rock shaft, and springs for rocking saidshaft in one direction, of a piston connected to said shaft, a cylinderin which said cylinder is operatively mounted, means for admitting airpressure into said cylinder,to actuate said piston and said shaft in onedirection effectively to tension said springs, a valve controlling theexhaust of air pressure from said cylinder, and means controlled-by saidpiston for actuating said valve to exhaust the pressure from saidcylinder and enable said springs to actuate said shaft and said pistonto their starting points.

12. The combination with a rock shaft, a piston connected to said'shaft,and a cylinder in which said piston is operatively mounted, of an inletpassage for admitting air pressure into said cylinder efl'ectively'tomove said piston in one direction, a. valve for controlling saidpassage, an exhaust passage from said cylinder also controlled by saidvalve, a spring for actuating said valve to open said inlet passage, anadditional spring for actuating said valve to open said exhaust passage,and'means under control of said piston determining when each of saidsprings shall actuate said valve.

13. The combination with a rock shaft,

' of the power stroke of said motor.

of a fluid motor entrained therewith, a valve controlling the admissionand exhaust of 'position to admit air to said motor, and means operatedby the motor for causing the other actuator to move said valve toposition to exhaust the pressure from said motor.

14. The combination with an oscillating shaft, of a fluid motor adaptedto oscillate said shaft in one direction, a valve for ad mittingpressure to said motor and exhausting pressure therefrom, a spring toactuate said valve to pressure admitting position, an additional springto actuate said spring to exhausting position, a latch normally holdingsaid valve in pressure-exhausting position, a device for releasing saidlatch, and means actuated by said shaft when said shaft is beingactuated by said motor whereby said latch is reset to release pressurevfrom said motor at the limit of the power 4 stroke of said motor.

15. The combination with an oscillating shaft, of a fluid motor adaptedto drive saidshaft in one-direction, a valve adapted to admit andexhaust pressure to and from said motor, a device for moving said valveto pressure admitting position, an additional device for moving saidvalve to exhausting position, a latch holding said valve againstmovement, means for releasing said latch, means for preventing saidlatch from being reset during the power stroke-of said motor, and-meansactuated by said shaft for releasing said last named means and therebypermitting said latch to reset at the limit 16. The combination with anoscillating shaft, of a fluid motor comprising a cylinder, a piston insaid cylinder operatively" connected with said shaft, a valve, apressure supply passage between saidvalve and said cylinder foradmitting fluid pressure on one side of said piston, a pressure exhaustpassage between said valve and said cylinder for exhausting said fluidpressure, a fluid pressure supply pipe entering said 'valve, a devicefor moving said valve for connecting said fluid supply passage with thepassage from said valve to said cylinder for admitting pressure, anadditional device for mov-.

ing said valve to open said exhaust passage, a latch normally holdingsaid valve against movement, and a device for releasing said latch,substantially as specified.

17. The combination with an oscillating shaft, of an actuator adapted tooperate said shaft in one direction, a fluid motor fordrivtion with arock-shaft,"of a motor, connections whereby the motor will rock saidshaft in one direction, means controlling the operation of said motor, adevice controlled by said shaft to stop movement of the shaft by themotor, and an actuator energized by said motor effectively to returnsaid shaft and said motor to their starting points.

19. In an adding machine, the combination with a. rock-shaft, ofa'motor, connections whereby the'motor will rock said shaft in onedirection, means controlling the operation of said motor, a devicecontrolled by said shaft to stop movement of the shaft by the motor,andan additional actuator energized by this operation effectively toreturn said shaft to idle position after said device has stoppedmovement of the shaft by said motor 20. In an adding machine, thecombination with a rock-shaft, and an actuator for actuating said shaftin onedirection and holding, said shaft in idle position, of a motor,connections whereby operation of the motor will rock said shaft inopposition to said actuator and energize said actuator, and devicescontrolled by said shaft to stop. movement of said shaft by said motorand to enable said actuator to return said shaft to idle position.

21. In an adding machine, the combination with a rock shaft, and anactuator arranged to rock said shaft in one direction and hold saidshaft inidle position, of a motor operative to rock said shaft inopposition to said actuator and to energize said actuator, amanipulative device determining when said motor will rock said shaft,and a. device controlled by said shaft to shut off power from said motorand to enable said' actuator to return said shaft and said motor to idleposition.

22. In an adding machine, the combination-With a rock-shaft, a motoroperative to rock said shaft in one direction, a device determining whensaid motor will operate,

optionally operable connections for 'control-" ling said device toenable said motor to operate and to rock said shaft, means controlled bysaid shaft for causing said device to stop the motor, and an actuatorenergized by said motor to return said shaft to idle position.

23. In an adding machine, the combination with a shaft, a motor arrangedto rock said shaft in one direction, a device movable to one position toenable said motor to operate and to another position to cause said motorto stop, and means on said rock-shaft for controlling said device tostop the motor,

of means energized by the aforesaid operation of said motor effectivelyto return said rock-shaft to idle position.

24. In an adding machine the combination of a shaft, a cylinder, aninlet passage to said cylinder, a passage from said cylinder, a valvemovable from one to the other of said-passages to admit an exhaustpressure from said cylinder alternately, a piston in said cylinder,connections whereby'said piston when actuated by pressure in saidcylinder will rock-said shaft, an actuator for moving said valvetoposition to close said inlet passage, "means controlled by the pistonfor causing said actuator to move said valve to close said inlet passagewhile said piston is being operated bythe pressure within said cylinder,an' independent actuator for returning said piston to its starting pointin said cylinder,-and an actuator energized by the return of the pistonfor moving the valve to open said inlet passage and to close saidexhaust passage.

In testimony whereof, I hereunto afiix my signature to thisspecification this 20th day of July, 1909, in the presence of two witnsses, 1 Y

, JOSEPH RABER. [n s.] I Witnesses: 1

I B. ,C. HARRISON, L. K. SEAGRAVE, Jr.

